FIRST DOWN. All progress in a football game is measured in yards. The offensive team tries to get as much yardage as it can to try and move closer to the opponent's end zone. Each time the offense gets the ball, it has four downs, or chances, in which to gain 10 yards.
The largest eagle species in the world is the Pithecophaga jefferyi or Philippine eagle. This species of eagle is on the critically endangered list due to the rapid decline in habitat, which is the tropical rainforest. Keep Learning.
1 Harpy Eagles are among the worldâs largest and most powerful eagles. 2  Their rear talons are about 3-4 inches long â the same size as a grizzly bearâs claws!3  Like many other birds of prey, Harpy Eagles continue to bring fresh green twigs and branches to the nest after the chick has hatched. Harpy Eagles are among the worldâs largest and most powerful eagles. 2  Their rear talons are about 3-4 inches long â the same size as a grizzly bearâs claws!